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mod routes;

use axum::{Router, response::IntoResponse};
use utoipa::OpenApi;
use utoipa_axum::router::OpenApiRouter;
#[cfg(feature = "redoc")]
use utoipa_redoc::Servable;
#[cfg(feature = "scalar")]
use utoipa_scalar::Servable as _;

use crate::state::AppHandle;

const TAG_ROUTING: &str = "Routing";

#[derive(OpenApi)]
#[openapi(
    tags(
        (name = TAG_ROUTING, description = "Operations related to routing configuration"),
    )
)]
pub struct ApiDoc;

/// Get health of the API.
#[utoipa::path(
    method(get),
    path = "/",
    responses(
        (status = OK, description = "Success", body = str, content_type = "text/plain")
    )
)]
pub async fn health_check() -> impl IntoResponse {
    let name = env!("CARGO_PKG_NAME");
    let ver = env!("CARGO_PKG_VERSION");

    format!("{name} v{ver} is live")
}

pub fn build_router(state: AppHandle) -> Router {
    let (router, _api) = OpenApiRouter::with_openapi(ApiDoc::openapi())
        .routes(utoipa_axum::routes!(health_check))
        .nest("/api", routes::router(state))
        .split_for_parts();

    #[cfg(feature = "swagger")]
    let router = router.merge(
        utoipa_swagger_ui::SwaggerUi::new("/swagger-ui")
            .url("/api-docs/swaggerdoc.json", _api.clone()),
    );

    #[cfg(feature = "redoc")]
    let router = router.merge(utoipa_redoc::Redoc::with_url("/redoc", _api.clone()));

    #[cfg(feature = "rapidoc")]
    let router = router.merge(
        utoipa_rapidoc::RapiDoc::with_openapi("/api-docs/rapidoc.json", _api.clone())
            .path("/rapidoc"),
    );

    #[cfg(feature = "scalar")]
    let router = router.merge(utoipa_scalar::Scalar::with_url("/scalar", _api));

    warden_middleware::apply(router)
}